https://doi.org/10.1351/goldbook.D01523
The @C01329@ bond formed upon interaction between molecular species, one of which serves as a donor and the other as an acceptor of the electron pair to be shared in the complex formed, e.g, the NB bond in H3NBH3. In spite of the analogy of dative bonds with covalent bonds, in that both types imply sharing a common electron pair between two vicinal atoms, the former are distinguished by their significant @P04710@, lesser strength, and greater length. The distinctive feature of dative bonds is that their minimum-energy rupture in the gas phase or in @I03026@ solvent follows the heterolytic bond cleavage path.